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Farmall & IHC Tractors Discussion Forum
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656 hydro

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nate

11-12-2003 03:16:22




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just bought a 656 hydro. may not be the smartestmove ever. the tractor doesnt move. doesnt attempt to, doesnt whine,anyhting. the previous owner changed the big filter with the relief valve on it, on the lower right side of the tractor. that is when he said it quit moving. we drained hytran, and are going to refill it and out flow guages to it, but i was wondering if there was anyhting simple to look for. the transmission does go into gear. but the hydro lever gives no response.
thanks for any help
nate

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Brian Fox

06-05-2004 09:22:31




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 Re: 656 hydro in reply to nate, 11-12-2003 03:16:22  
I've got a 67 Farmall 656D Hydro. And had the same problem as you describe after changing the bottom filter and Hy-tran. After a day and a half of it not moving no matter what I did, I called the guy I bought it from to see if he had any thoughts. He told me to jack up one wheel and put it in high range and work the speed control lever in reverse while someone spins the tire in reverse. After you get it moving in reverse (it will be slugish at first) do the same for forward. I want to empahsize extreem caution when doing this. Don't just jack up the tractor, block it up and remain seated on the tractor and have someone help you. Do not let anyone stand in front of or behind the tractor when doing this. When my pump finally did prime I was in high range at about 1400 rpms and the speed control nearly all the way forward. The left wheel of the tractor was jacked up about 3". I was standing on the tractor, spinning the wheel with my left foot. When the pump primed the torque threw me off balance and the rear wheel nearly pulled me off the tractor. If I wasn't holding onto the steering wheel with my left hand things might not have turned out as well. After my knees quit knocking and the hydo was working I got off the tractor and looked at the jack, it was hanging on by half an inch and the wheel had scuffed the ground from the torque. I still get chills thinking about how close my own stupidity came to getting me into some serious trouble. The 656 has been running great ever since. Starts like a champ. It does burn some oil and may have an overhaul in its future, but it has all the power I need and until it doesn't I'll keep checking the oil and running it.

Brian

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Aces

11-12-2003 04:52:55




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 Re: 656 hydro in reply to nate, 11-12-2003 03:16:22  
Nate I go back to the filter sounds like he did not get it back in right, could be get air.



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Hoppy

11-12-2003 05:55:02




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 Re: Re: 656 hydro in reply to Aces, 11-12-2003 04:52:55  
I also have a 656 Diesel Hydro, and recently changed the oil and filters. 20 gallon, and I was told to leave the high-low shift in neutral and stroke the hydro lever forward, and run for several minuites. This I think to get air out of the system. After doing that I placed the transmission in hi and it worked fine. 20 gallons of hytran and filters ruins $200.



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